Transportation
| Mon 11 May 2026
Beijing, May 11 -- China Railway Fifth Survey & Design Institute Group has sought patent for Shield Tunnel Inverted Arch Block Structure Under Large Longitudinal Slope Condition. This invention was developed by Lu Yujie, Zhou Chunfeng, Liu Shubin, Liu Hailin, Guo Qinghao, Yan Lipeng, Dong Yunsheng, Yu Tiancheng, Song Chengyu, Li..